Key hydrogeological aspects of landslides in Western Ghats of Maharashtra
- pp1225-1233
The frequency and intensity of landslides in the Western Ghats of Maharashtra, India, have increased. The present study examines the unprecedented series of landslides in the Choravane watershed in July 2021, where 94 landslides were triggered by prolonged and intense rainfall. Many occurred in undisturbed forested areas, indicating that the landslides are not always associated with human-modified slopes. Our findings highlight the role of extended rainfall, distinctive lithology of the Deccan Volcanic Province and groundwater dynamics, particularly subsurface saturation and pore pressure, in landslide initiation. These insights have implications for hazard prediction and mitigation.
Antecedent rainfall, disaster landslide hydrology remote sensing Western Ghats